--- a/langtools/src/share/classes/com/sun/tools/javac/jvm/ClassReader.java	Thu Sep 03 18:34:17 2009 -0700
+++ b/langtools/src/share/classes/com/sun/tools/javac/jvm/ClassReader.java	Tue Sep 08 11:12:13 2009 -0700
@@ -27,6 +27,7 @@
 
 import java.io.*;
 import java.net.URI;
+import java.net.URISyntaxException;
 import java.nio.CharBuffer;
 import java.util.EnumSet;
 import java.util.HashMap;
@@ -2614,7 +2615,11 @@
         }
 
         public URI toUri() {
-            return URI.create(name.toString());
+            try {
+                return new URI(null, name.toString(), null);
+            } catch (URISyntaxException e) {
+                throw new CannotCreateUriError(name.toString(), e);
+            }
         }
 
         @Override